Hi David, I don't have enough knowledge or experience to make sense of all this. They are promoting a product so once again the question is... Are they also misleading us?
-----Original Message----- From: David W Kenney [mailto:drd...@mindspring.com] Sent: Monday, January 17, 2005 6:11 PM To: silver-list@eskimo.com Subject: RE: CS>How many ppm in CS www.invive.com I was sent the above site... It suggests that the CS we make in the 1-2 digits is essentially worthless. Anyone want to comment on this...or is this just another sales technique. -----Original Message----- From: Mike Monett [mailto:pqunsulee...@spammotel.com] Sent: Monday, January 17, 2005 3:04 PM To: silver-list@eskimo.com Subject: CS>How many ppm in CS CS>How many ppm in CS From: JB Date: Wed, 12 Jan 2005 22:00:21 http://escribe.com/health/thesilverlist/m76914.html > How could you explain the following: > I used 240 ml of distilled water and TDS (total dissolved solids) > meter to measure number of ppm. > The reading of ppm before applying the CS generator with about 26V > from batteries: 2ppm > After 10 min and stirring the water I read 3 ppm > After next 10 min the reading was 5 ppm > Finally after 25 min I had 7 ppm on my meter. > Can we say that the amount of silver liberated in my distilled > water was 5ppm? > Regards > Jurek Hi Jurek, You are correct in subtracting the initial dw reading from the final result, but it is not clear what correction factor the TDS may require. Some TDS meters use a 0.5 or 0.7 correction factor to convert their measured conductivity in uS to ppm. For example, the Hanna HI9033, HI9034, HI9039, HI9130, HI933100, and HI9635 use different conversions. See http://www.hannainst.com/downloads/instr/hi9033.pdf Also, you need to let the solution stabilize before taking readings to allow the ions to reach a uniform distribution throughout the solution. This can take several hours after the brew is finished. One method of determining the silver ion concentration is to use the Faraday equations to calculate how much silver was liberated, then compare the result with your TDS reading. Since you are using a constant voltage system, you need to measure the current at frequent intervals during the brew, say every 10 seconds, and use WPlot to integrate the curve and obtain the average current over the brew time. Put this into Mercury along with the volume of dw, and it will calculate the amount of silver released. In your case, a short brew time means very litle will be lost in forming oxides and plateout at the cathode. So the calculation and the TDS reading should match very well. You can download Mercury at: http://archives.math.utk.edu/software/msdos/calculus/mrcry209/.html Here are the complete conversion factors: Coulombs = I * Seconds ; total number of Coulombs CoulombsGram = 107.868 / 96485 ; Coulombs per gram of silver ElectronsSec = I / 1.60217733e-19 ; electrons per second Grams = CoulombsGram * I * Seconds ; Faraday's equation IonsPerNano = IonsSqInSec / 6.45e14 ; ions per square nanometer/sec IonsSqInSec = ElectronsSec / SquareIn ; ions per sq. in. per sec Litres = 3.785 * Gallon ; convert gallons to litres Litres = Millilitres / 1000 ; convert millilitres to litres Milligrams = Grams * 1000 ; convert grams to milligrams Millilitres = 29.57 * Ounces ; convert ounce to milliliters NumberIons = ElectronsSec * Seconds ; number of silver ions ppm = Milligrams / Litres ; 1 ppm is 1 milligram per litre ppmPerHr = ppm / Hours ; ppm per hour Seconds = Hours * 3600 + Minutes * 60 ; get seconds uASqIn = 1e6 * I / SquareIn ; current density in uA per sq in You need to add the parameters for your system. Here's the typical parameters for my Godzilla cs generator: I = 775e-6 ; current in Amperes Millilitres = 2000 ; volume of dw Minutes = 0 ; minutes ppm = 22 ; target ppm SquareIn = 11.5 ; wetted area in square inches A constant current generator will greatly simplify the calculations. Best of Luck! Mike Monett -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: silver-list@eskimo.com Silver List archive: http://escribe.com/health/thesilverlist/index.html Address Off-Topic messages to: silver-off-topic-l...@eskimo.com OT Archive: http://escribe.com/health/silverofftopiclist/index.html List maintainer: Mike Devour <mdev...@eskimo.com>
